
alaris2
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very nice work Xeno - is it articulated?
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2) a finger no less. printed directly to a hot bed which costs £20 to make, oh and dual extrusion too from a hybrid V2 and an all metal hotend. (cos I was twiddling my fingers waiting for UM to make a hot bed, then I thought, let's just do it. so if I can do it, you can do it so much easier!)
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I keep getting requests to post these, so here goes. 1) SG's most excellent direct drive upgrade. never tension those stupid short belts, never have a naf print again. nice work SG! of course, all self-respecting UM owners have already made this upgrade, so it's hardly news I realize, I'm a bit late with this..
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anyone? I'm assuming the problem lies in temperature.Cpp but haven't found it yet
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it's gone really quiet actually - I had so many people write to me saying they were working on slicers that it made no sense for me to reinvent the wheel, so I stopped. I also had loads of messages of support and offers of help- thanks to everybody- and sorry I didn't have time to respond to you individually- there were too many! I was reminded last night again after a terrible print just how dire the need for a decent slicer is-so I hope Daid has made better progess than I. whilst I don't now have the time to write the whole thing I would be happy to share where l got to and the methods
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ooh! new design? I wonder if they're making those changes I suggested -if so it will make this a no-effort UM upgrade. Robert -there may be other silicone heater manufacturers near you?
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that's the one! #include 2 metal plates and 1 PC power supply , and a relay and you're in business one of the easiest and cheapest upgrades ever
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Ahh! that sounds useful Daid- thanks!
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Fixing Pulley Innacuracy
alaris2 replied to snowygrouch's topic in Third party products & modifications
really good discussion going here - SG - I was being a bit vague-sorry I think the latter -quantify the error by observing its effect on a simple print 0.1mm should be easy to see- perhaps a simple octagon vase would show it on the faces that align with the axes? just thinking aloud here really... -
Sorry-I should have mentioned that (about the website) before they usually deal with reprap people who use 1.75mm stuff -but I asked them if they would do some 3mm stuff for us since they have all the tools Robert-about the hotbed-it's a company called Qubd- I can post more info on a separate thread if you like. or pm me for more details
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having added my £20 hotbed I admit to being rather pleased with the results-prints are coming out clearer and with nice flat bottoms but I wonder about safety ? several of us have had problems with the arduino crashing due to power spikes or whatever what happens if it crashes while controlling a relay-based hotbed? does a crash automatically open the relay (ie. bed off) or is it not failsafe.in which case the hotbed just keeps getting hotter?! what precautions have other hotbed users taken?
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one of the best mods I ever made - I just added a heated bed for £20 too and printing is such a dream (actually it still takes too long to print so sometimes I do end up dreaming) E3D aren't out of stock - the web page is at fault-email them and say nik sent you. remember you will need to mod the top metal piece if you want to attach it to the existing UM print head
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Fixing Pulley Innacuracy
alaris2 replied to snowygrouch's topic in Third party products & modifications
can I suggest we make a test calibration piece so we can both see and quantify the effect I don't have any smart ideas what it would look like but perhaps Someone could Suggest? -
I know there's been a bunch of posts about the buildmemarlin not working for hotbeds since late last year. so I downloaded and tried to build the marlin from source. however, it appears to also be broken for dual extrusion, in that if i set T0 to 50C (as an example), the ulticontroller shows both hotends are being taken to 50C, not just the one. it reads 53/50 and 54/0 (as an example again) on the display. and yes, both are hot if you touch them. known bug? is there a quick fix?
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Fixing Pulley Innacuracy
alaris2 replied to snowygrouch's topic in Third party products & modifications
Mine make the same sound however they also feel 'uneven' even when I detach the belts- I know it's a silly question but have you tried this?